EP1956266B1 - Spannschloss und Herstellungsverfahren dafür - Google Patents

Spannschloss und Herstellungsverfahren dafür Download PDF

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Publication number
EP1956266B1
EP1956266B1 EP08150415A EP08150415A EP1956266B1 EP 1956266 B1 EP1956266 B1 EP 1956266B1 EP 08150415 A EP08150415 A EP 08150415A EP 08150415 A EP08150415 A EP 08150415A EP 1956266 B1 EP1956266 B1 EP 1956266B1
Authority
EP
European Patent Office
Prior art keywords
hole
turnbuckle
peripheral wall
longitudinal
transverse
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP08150415A
Other languages
English (en)
French (fr)
Other versions
EP1956266A3 (de
EP1956266A2 (de
Inventor
Bobby Hu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1956266A2 publication Critical patent/EP1956266A2/de
Publication of EP1956266A3 publication Critical patent/EP1956266A3/de
Application granted granted Critical
Publication of EP1956266B1 publication Critical patent/EP1956266B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G11/00—Means for fastening cables or ropes to one another or to other objects; Caps or sleeves for fixing on cables or ropes
    • F16G11/12—Connections or attachments, e.g. turnbuckles, adapted for straining of cables, ropes, or wire
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/06—Turnbuckles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/29—Rotarily connected, differentially translatable members, e.g., turn-buckle, etc.
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/29—Rotarily connected, differentially translatable members, e.g., turn-buckle, etc.
    • Y10T403/291—Rotarily connected, differentially translatable members, e.g., turn-buckle, etc. having tool-engaging means or operating handle

Definitions

  • the present invention relates to a turnbuckle according to the preamble of claim 4 and, more particularly, to a turnbuckle that can be easily manufactured at low costs and that has excellent pull-resistant and torque-resistant properties.
  • the present invention also relates to a method for making such a turnbuckle according to the preamble of claim 1.
  • a turnbuckle of the initially-mentioned type is known from EP 0033143 A1 and a method for making a turnbuckle as described in the preamble of claim 1 are known, e.g., from FR 416 214 A .
  • FR 497 263 A discloses a further turnbuckle.
  • FIG. 1 shows a conventional turnbuckle 1 that is generally utilized in machine industry, building industry, shipping, etc. to tighten an object such as a machine frame, a molding plate, or a rope.
  • the turnbuckle 1 includes two coupling ends 5 and a pair of spaced interconnecting rods 2 between the coupling ends 5.
  • a longitudinal through-hole 7 is defined between the interconnecting rods 2.
  • Each coupling end 5 has a screw hole 6 through which a screw rod 8 extends.
  • Formed on an outer end of each screw rod 8 is a hook 4.
  • a tool 3 ( FIG.
  • the interconnecting rods 2 are liable to deform ( FIG. 3 ), causing damage to the turnbuckle 1 and, thus, shortening of the life of the turnbuckle 1.
  • Such a turnbuckle 1 is generally formed of zinc-aluminum alloy by pressure casting that is time-consuming and expensive. In addition to weak structure with a poor extensibility, the turnbuckle 1 formed by pressure casting is solid and heavy and, thus, less desirable to users. A turnbuckle made by forging has excellent structural strength, but the costs are high.
  • U.S. Patent No. 5,908,261 to Bush et al. discloses a turnbuckle and a method of making a turnbuckle.
  • elongate fibers are wound around fiber supports on opposite sides of the end fittings that are set in a suitable mold or die cavity.
  • Uncured or liquid matrix material such as thermoplastic or thermoset resin is introduced over the end fittings in the cavity by injection molding or resin transfer molding processes. The matrix material is then allowed to cure or harden to solid form.
  • Such a method is complicated, time-consuming and expensive, and, thus, not suitable for mass production.
  • a method for making a turnbuckle includes preparing an iron tube having a longitudinal through-hole. A diameter of each of two ends of the iron tube is reduced to form a coupling section having an engaging hole, with an interconnecting section interconnected between the coupling sections. The interconnecting section is punched in a direction perpendicular to the longitudinal through-hole to form a transverse through-hole perpendicular to the longitudinal through-hole and between the coupling sections, leaving two peripheral wall portions on opposite sides of the transverse through-hole. After punching, a bend is formed and extends inward from each of two end edges of each peripheral wall portion into the longitudinal through-hole. Each bend delimits the transverse through-hole. An abutting portion is formed between each bend and one of the end edges of one of the peripheral wall portions. Inner threading is formed in the engaging hole of each coupling section.
  • Forming inner threading in the engaging hole of each coupling section can be carried out before punching the interconnecting section.
  • the iron tube can be trimmed after punching the interconnecting section.
  • a turnbuckle includes two coupling sections each having a screw hole.
  • An interconnecting section is interconnected between the coupling sections and has a longitudinal hole in communication with the screw holes.
  • the interconnecting section further includes two opposite peripheral wall portions spaced by a transverse through-hole extending perpendicularly to the longitudinal hole and between the coupling sections.
  • Each peripheral wall portion has two opposite end edges spaced from each other in a direction parallel to the transverse through-hole.
  • a bend extends inward from each end edge of each peripheral wall portion into the longitudinal hole. The bends are parallel to and delimit the transverse through-hole.
  • An abutting portion is formed between each bend and one of the end edges of one of the peripheral wall portions.
  • each peripheral wall portion includes an intermediate section between the end edges thereof and spaced from the bends thereof.
  • Each coupling section has an outer diameter smaller than that of the interconnecting section.
  • the peripheral wall portions are diametrically opposed. The screw holes of the coupling sections have opposite hands.
  • FIG. 4 shows a flowchart illustrating a method for making a turnbuckle according to the preferred teachings of the present invention.
  • an iron tube 40 ( FIG. 5 ) having a longitudinal through-hole 42 and a suitable length is prepared.
  • the iron tube 40 has circular cross-sections.
  • each of two ends 50 of the iron tube 40 is subjected to diameter-reducing processing by a diameter-reducing machine to form a coupling section 12 having an engaging hole 121.
  • An interconnecting section 11 is interconnected between the coupling sections 12 ( FIGS. 6A and 6B ). After the diameter-reduction, each coupling section 12 has an outer diameter smaller than that of the interconnecting section 11, but the wall thickness of each end 50 of the iron tube 40 is increased.
  • the interconnecting section 11 is punched at two diametrically opposed peripheral wall portions 52 thereof in a direction perpendicular to the longitudinal through-hole 42 to form a transverse through-hole 13 that is perpendicular to the longitudinal through-hole 42 and between the coupling sections 12, leaving two diametrically opposed peripheral wall portions 44 spaced by the transverse through-hole 13.
  • the punching is a two-stage punching, wherein FIG. 7A shows a side view of the iron tube 40 after a first punching stage of the punching procedure, FIG. 7B shows a cross-sectional view of the iron tube 40 of FIG. 7A , FIG. 8A shows a side view of the iron tube 40 after a second punching stage of the punching procedure, and FIG.
  • FIG. 8B shows a cross-sectional view of the iron tube 40 of FIG. 8A .
  • a bend 14 is formed and extends inward from each of two end edges 46 of each peripheral wall portion 44.
  • Each bend 14 is parallel to and delimits the transverse through-hole 13.
  • An abutting portion 15 is formed between each bend 14 and one of the end edges 46 of one of the peripheral wall portions 44.
  • an intermediate section 48 between the end edges 46 of each peripheral wall portion 44 is spaced from the bends 14 extending from the end edges 46 by a spacing 16 in a direction perpendicular to the longitudinal through-hole 42 and the transverse through-hole 13.
  • inner threading is formed in the engaging hole 121 of each coupling section 12 to form a screw hole.
  • Suitable methods including but not limited machine tapping can be utilized to form inner threading in the engaging holes 121.
  • one of the engaging holes 121 is a left-hand screw hole, and the other engaging hole 121 is a right-hand screw hole. It can be appreciated that the wall thickness of each end 50 of the iron tube 40 is increased through the diameter-reducing processing to allow formation of the inner threading without damaging the structural strength of the coupling sections 12.
  • the iron tube 40 is trimmed to form a product of a turnbuckle 10 ( FIG. 10 ).
  • each coupling rod 20 includes a hook 24 outside the turnbuckle 10 and a screw rod 22 threadedly engaged with the engaging hole 121 of one of the coupling sections 12.
  • a tool 3 in the form of a rod is inserted through the transverse through-hole 13 and turned in a direction to rotate the turnbuckle 10 and, thus, move the hooks 24 toward each other for providing the required tightening effect.
  • the tool 3 can be turned in a reverse direction to move the hooks 24 away from each other for loosening purposes.
  • the abutting portions 15 of the turnbuckle 10 according to the preferred teachings of the present invention formed during simple, fast punching can withstand higher torque than a turnbuckle made by casting.
  • the turnbuckle 10 according to the preferred teachings of the present invention is made of a single, round iron tube that is light and cheap.
  • the turnbuckle 10 according to the preferred teachings of the present invention can be made at low costs and has excellent structural strength and excellent pull-resistant properties compared to the conventional iron tube made by casting.
  • the turnbuckle 10 according to the preferred teachings of the present invention is a single continuous monolithic piece and, thus, has excellent structural strength, for the coupling sections 12 and the interconnecting section 11 are integral with each other.
  • the turnbuckle 10 made by the method the according to the preferred teachings of the present invention is cheaper and faster than forging and casting, for less material and simple procedures are utilized.
  • the turnbuckle 10 according to the preferred teachings of the present invention is lighter than those made by forging and casting and, thus, allow easy operation by a user.
  • the abutting portions 15 of the turnbuckle 10 according to the preferred teachings of the present invention formed during simple, fast punching has better extensibility and can withstand higher torque than a turnbuckle made by casting.
  • the two-stage punching procedure can be replaced with a single-stage punching or other punching procedures.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Forging (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Ropes Or Cables (AREA)

Claims (8)

  1. Ein Verfahren zum Herstellen eines Spanners, aufweisend:
    Bereitstellen eines Eisenrohrs (40) mit einem Längsdurchgangsloch (42),
    Reduzieren eines Durchmessers eines jeden von zwei Enden (50) des Eisenrohrs (40), um einen jeweiligen Kupplungsabschnitt (12) mit einem Eingriffsloch (121) zu formen, wobei ein Verbindungsabschnitt (11) zwischen den Kupplungsabschnitten (12) verbunden ist,
    Lochen des Verbindungsabschnitts (11) in einer Richtung senkrecht zu dem Längsdurchgangsloch (42), um ein Querdurchgangsloch (13) zu formen, welches senkrecht ist zu dem Längsdurchgangsloch (42) und zwischen den Kupplungsabschnitten (12) ist, wobei zwei gegenüberliegende Umfangswandabschnitte (44) zurückgelassen werden, welche durch das Querdurchgangsloch (13) mit Abstand zueinander angeordnet sind,
    gekennzeichnet durch
    Formen eines jeweiligen Biegeabschnitts (14), welcher sich von dem jeweiligen von zwei Endrändern (46) eines jeden der zwei Umfangswandabschnitte (44) nach Innen in das Längsdurchgangsloch (42) erstreckt, wobei jeder der Biegeabschnitte (14) das Querdurchgangsloch (13) begrenzt, wobei zwischen jedem Biegeabschnitt (14) und einem der zwei Endränder (46) von einem der zwei Umfangswandabschnitte (44) ein Anliegeabschnitt (15) geformt ist, und
    Formen eines Innengewindes in dem Eingriffsloch (121) eines jeden Kupplungsabschnitts (12).
  2. Das Verfahren zum Herstellen eines Spanners wie in Anspruch 1 beansprucht, wobei das Formen des Innengewindes in dem Eingriffsloch (121) durchgeführt wird, bevor der Verbindungsabschnitt (11) gelocht wird.
  3. Das Verfahren zum Herstellen eines Spanners wie in Anspruch 2 beansprucht, ferner aufweisend ein Trimmen des Eisenrohrs (40), nachdem der Verbindungsabschnitt (11) gelocht wurde.
  4. Ein Spanner, aufweisend:
    zwei Kupplungsabschnitte (12), von denen jeder ein Schraubloch (121) hat, und
    einen Verbindungsabschnitt (11), welcher zwischen den zwei Kupplungsabschnitten (12) verbunden ist und ein Längsloch (42) hat, das in Verbindung steht mit den Schraublöchern (121), wobei der Verbindungsabschnitt (11) ferner ein Querdurchgangsloch (13) hat, welches sich senkrecht zu dem Längsloch (42) erstreckt und zwischen den Kupplungsabschnitten (12) ist, wobei der Verbindungsabschnitt (11) ferner zwei gegenüberliegende Umfangswandabschnitte (44) hat, welche durch das Querloch (13) mit Abstand zueinander angeordnet sind, wobei jeder der zwei Umfangswandabschnitte (44) zwei gegenüberliegende Endränder (46) hat, welche in einer Richtung parallel zu dem Querdurchgangsloch (13) mit Abstand zueinander angeordnet sind,
    wobei sich von jedem der zwei Endränder (46) eines jeden der zwei Umfangswandabschnitte (44) ein Biegeabschnitt (14) nach Innen in das Längsloch (42) erstreckt und das Querdurchgangsloch (13) begrenzt, wobei zwischen jedem Biegeabschnitt (14) und einem der zwei Endränder (46) von einem der zwei Umfangswandabschnitte (44) ein Anliegeabschnitt (15) geformt ist,
    dadurch gekennzeichnet, dass
    sich die Biegeabschnitte parallel zu dem Querdurchgangsloch (13) erstrecken.
  5. Der Spanner wie in Anspruch 4 beansprucht, wobei jeder der zwei Umfangswandabschnitte (44) einen Zwischenabschnitt (48) zwischen den zwei Endrändern (46) davon hat, welche im Abstand zu den Biegeabschnitten (14) davon angeordnet sind.
  6. Der Spanner wie in Anspruch 4 beansprucht, wobei jeder der zwei Kupplungsabschnitte (12) einen Außendurchmesser hat, der kleiner ist als der Verbindungsabschnitt (11).
  7. Der Spanner wie in Anspruch 4 beansprucht, wobei sich die zwei Umfangswandabschnitte (44) diametral gegenüberliegen.
  8. Der Spanner wie in Anspruch 4 beansprucht, wobei die Schraublöcher (121) der zwei Kupplungsabschnitte (12) gegenläufige Gänge haben.
EP08150415A 2007-02-09 2008-01-18 Spannschloss und Herstellungsverfahren dafür Not-in-force EP1956266B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW096104909A TW200833451A (en) 2007-02-09 2007-02-09 Manufacturing process of turnbuckle and structure thereof

Publications (3)

Publication Number Publication Date
EP1956266A2 EP1956266A2 (de) 2008-08-13
EP1956266A3 EP1956266A3 (de) 2009-08-12
EP1956266B1 true EP1956266B1 (de) 2011-03-23

Family

ID=39358383

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08150415A Not-in-force EP1956266B1 (de) 2007-02-09 2008-01-18 Spannschloss und Herstellungsverfahren dafür

Country Status (7)

Country Link
US (1) US7556448B2 (de)
EP (1) EP1956266B1 (de)
JP (1) JP4880626B2 (de)
AT (1) ATE503134T1 (de)
CA (1) CA2618751C (de)
DE (1) DE602008005655D1 (de)
TW (1) TW200833451A (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004032312A1 (de) * 2004-07-03 2006-01-19 Deere & Company, Moline Griff, Hubspindelanordnung und Fertigungsverfahren für einen Griff
US9133635B2 (en) * 2013-05-01 2015-09-15 Titcomb Brothers Manufacturing, Inc. Adjustable tie rod assembly employing a free swiveling capability
EP3375318B1 (de) * 2017-03-17 2019-10-30 Samsonite IP Holdings S.à.r.l. Verstellbare befestigungsanordnung zur befestigung eines objekts in einem gepäckstück
CN109538693A (zh) * 2018-12-14 2019-03-29 日照德信机械制造有限公司 一种防拧脱管式花兰及其制备方法
CN110685942B (zh) * 2019-11-15 2023-03-17 广东恒利通风机有限公司 一种柜式高效离心风机
CN111577830A (zh) * 2020-05-21 2020-08-25 江南大学 一种防脱落螺旋扣

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR416214A (fr) 1910-04-19 1910-10-14 Emile Charles Amblard Tendeurs de cables en tube serti
FR497263A (fr) 1917-04-11 1919-12-02 Goffredo Diomedi Tendeur
FR567470A (fr) * 1923-06-15 1924-03-03 Procédé de fabrication des corps de tendeurs à vis
US1878055A (en) * 1925-11-14 1932-09-20 Theodore H Wittliff Stamped metal article and method of making same
US1876720A (en) * 1930-09-11 1932-09-13 George H Merrill Method of making protecting means for connecting devices
US2736581A (en) * 1951-04-06 1956-02-28 Thompson Prod Inc Adjusting sleeve
US3489443A (en) * 1968-09-24 1970-01-13 Chas O Larson Turnbuckle
JPS5953135B2 (ja) * 1980-01-24 1984-12-24 祥夫 川端 タンバツクルの製造方法
JPS5851843U (ja) * 1981-10-06 1983-04-08 株式会社　国元商会 タ−ンバツクル
JPH028536A (ja) * 1988-06-25 1990-01-12 Kondo Tekko Kk ターンバックルとその製造法
DE69411915T2 (de) * 1994-09-12 1998-11-26 Huang Han Ching Herstellungsverfahren eines Verankerungselements
US5908261A (en) * 1997-08-06 1999-06-01 Amsted Industries Incorporated Turnbuckle and method of making a turnbuckle

Also Published As

Publication number Publication date
CA2618751A1 (en) 2008-08-09
EP1956266A3 (de) 2009-08-12
US20080193202A1 (en) 2008-08-14
DE602008005655D1 (de) 2011-05-05
CA2618751C (en) 2010-02-16
US7556448B2 (en) 2009-07-07
JP2008196693A (ja) 2008-08-28
TWI305161B (de) 2009-01-11
EP1956266A2 (de) 2008-08-13
TW200833451A (en) 2008-08-16
JP4880626B2 (ja) 2012-02-22
ATE503134T1 (de) 2011-04-15

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